The Bucher Pump 2 Way (Power Up / Power Down) by Bucher Hydraulics, Inc. features a 1.5 gal. poly reservoir and 12V DC motor with solenoid valves—ideal as a double-acting hydraulic pump for versatile applications.

Bucher 2-Way Hydraulic Power Unit | 3 qt Poly

$631.00
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The Bucher Pump 2 Way (Power Up / Power Down) by Bucher Hydraulics, Inc. features a 1.5 gal. poly reservoir and 12V DC motor with solenoid valves—ideal as a double-acting hydraulic pump for versatile applications.
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  • The Bucher Pump 2 Way (Power Up / Power Down) by Bucher Hydraulics, Inc. features a 1.5 gal. poly reservoir and 12V DC motor with solenoid valves—ideal as a double-acting hydraulic pump for versatile applications.
  • The Bucher Hydraulics, Inc. Bucher Pump 2 Way (Power Up / Power Down) features a 1.5 gal. poly reservoir and a 12V DC double-acting hydraulic pump, set against a white background.
  • The Bucher Hydraulics, Inc. Bucher Pump 2 Way (Power Up / Power Down) features a white 1.5 gal. poly reservoir and a 12V DC motor with a double-acting hydraulic pump, shown against a white background.
  • The Bucher Hydraulics, Inc. Bucher Pump 2 Way features power up/power down operation, a 1.5-gal poly reservoir, and a 12V DC motor in a silver metal housing for efficient double-acting hydraulic performance.
  • The Bucher Pump 2 Way (Power Up / Power Down) 1.5 gal. Poly Reservoir by Bucher Hydraulics, Inc. is a white plastic tank with a red cap and black top components, featuring a 12V DC motor for double-acting hydraulic pump operation.
  • A front close-up of the Bucher Hydraulics, Inc. Pump 2 Way (Power Up / Power Down) with a 1.5 gal. poly reservoir and metal parts, featuring a 12V DC motor.
  • The Bucher Hydraulics, Inc. Bucher Pump 2 Way (Power Up/Power Down) features a 1.5 gal. poly reservoir and 12V DC motor—ideal for double-acting hydraulic applications and comes with control valves on a white background.
  • Front view of a Bucher Pump 2 Way (Power Up / Power Down) with 1.5 gal. poly reservoir by Bucher Hydraulics, Inc., showing bolts and terminals similar to those on a 12V DC motor or hydraulic power unit.
  • The Bucher Pump 2 Way (Power Up / Power Down) by Bucher Hydraulics, Inc. features a 1.5 gal. poly reservoir and 12V DC motor with solenoid valves—ideal as a double-acting hydraulic pump for versatile applications.
  • The Bucher Hydraulics, Inc. Bucher Pump 2 Way (Power Up / Power Down) features a 1.5 gal. poly reservoir and a 12V DC double-acting hydraulic pump, set against a white background.
  • The Bucher Hydraulics, Inc. Bucher Pump 2 Way (Power Up / Power Down) features a white 1.5 gal. poly reservoir and a 12V DC motor with a double-acting hydraulic pump, shown against a white background.
  • The Bucher Hydraulics, Inc. Bucher Pump 2 Way features power up/power down operation, a 1.5-gal poly reservoir, and a 12V DC motor in a silver metal housing for efficient double-acting hydraulic performance.
  • The Bucher Pump 2 Way (Power Up / Power Down) 1.5 gal. Poly Reservoir by Bucher Hydraulics, Inc. is a white plastic tank with a red cap and black top components, featuring a 12V DC motor for double-acting hydraulic pump operation.
  • A front close-up of the Bucher Hydraulics, Inc. Pump 2 Way (Power Up / Power Down) with a 1.5 gal. poly reservoir and metal parts, featuring a 12V DC motor.
  • The Bucher Hydraulics, Inc. Bucher Pump 2 Way (Power Up/Power Down) features a 1.5 gal. poly reservoir and 12V DC motor—ideal for double-acting hydraulic applications and comes with control valves on a white background.
  • Front view of a Bucher Pump 2 Way (Power Up / Power Down) with 1.5 gal. poly reservoir by Bucher Hydraulics, Inc., showing bolts and terminals similar to those on a 12V DC motor or hydraulic power unit.
Bucher 2-Way Hydraulic Power Unit | 3 qt Poly

Bucher 2-Way Hydraulic Power Unit | 3 qt Poly

PM-3551-0667
$631.00
In Stock

The Bucher PM-3551-0667 2-Way Hydraulic Power Unit is a compact 12V double-acting HPU with a 3-quart high-density polyethylene reservoir — the small-footprint version of the PM-3551. It powers cylinders both up and down at 2,500 PSI, fitting in tight installations where the full 2-gallon reservoir won't fit.

Which Bucher 2-way HPU should I choose — 3-quart or 2-gallon?

Pick the 3-quart for small or short-cycle cylinders where reservoir volume isn't the limiter and mounting space is tight. Pick the 2-gallon when you have room and the cylinder pulls a lot of fluid each cycle, or when extended duty would heat a smaller reservoir past spec.

  • 12V DC, 2-Way (Power Up / Power Down) — double-acting
  • 3-quart high-density polyethylene reservoir (compact)
  • 2,500 PSI operational pressure
  • 1.5 GPM max oil flow
  • #6 SAE hose connections
  • Operating temp: -20°F to 130°F
  • Recommended fluid: ATF (Automatic Transmission Fluid)
  • Bucher PM-3551-0667 — made in USA, 100% tested

For the larger 2-gallon version of the same circuit, see the Bucher 2-Way HPU (PM-3551, 2 gal). For bale-spear-specific use, see the Bucher Bale Spear HPU (PM-3554).
Specifications
Operating Voltage
12 Volts DC
Max Oil Flow (gpm)
1.50
Operational Pressure (psi)
2500
Reservoir Capacity
3 Quarts
Reservoir Material
High Density Polyethylene
Hose Connections
#6 SAE
Recommended Fluid
ATF (Automatic Transmission Fluid)
Operating Temperature Range
-20ºF to 130ºF (-30ºC to 55ºC)
Replacement Parts (3)
Bucher 10V Coil | Hydraulic Pump Valve
Bucher 10V Coil | Hydraulic Pump ValveSKU: 1019660
$68.00
Bucher 12V Pump Solenoid | Style 2
Bucher 12V Pump Solenoid | Style 2SKU: P050T
$42.00
Bucher Hydraulic Pump Valve | Fits PM-319
Bucher Hydraulic Pump Valve | Fits PM-319SKU: P07193
$176.00
FAQs (3)
What maintenance is recommended for these Hydraulic Power Units?
Every 2-3 months, check electrical connections for corrosion and tightness from unit to battery. Check the fluid condition and level. Inspect the breather/filler cap as well for missing foam or dirt. Every year we recommend changing out your hydraulic fluid.
What fluid is recommended in this Hydraulic Power Unit?
We recommend ATF (Automatic Transmission Fluid) for almost every case. In very low temperatures (Below -20°F / -30°C) the ATF will thicken. In this cold weather, ensure the reservoir is filled to the recommended level and consider preheating the fluid or using a reservoir heater.
Can I use this hydraulic power unit to run my hydraulic winch?
Short answer: No. Long answer: Yes, but it will be a slow, sad, and disappointing experience. While the operating pressure is often correct, the 1.5 gpm (gallons per minute) vs the 15 gpm of a clutch or PTO pump is going to be a tenth of the performance you'd want at best.
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